Polyfluorene nanowires with pronounced axial texturing prepared by melt-assisted template wetting

Deirdre M O'Carroll, Jennifer Irwin, David A. Tanner, Gareth Redmond

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Poly(9,9-dioctylfluorene) conjugated polymer nanowires were fabricated by melt-assisted wetting of porous anodic alumina templates. Analysis by high-resolution transmission electron microscopy and X-ray diffraction suggested that the polymer molecules were axially textured within the nanowires. Polarized optical microscopy images of single nanowires exhibited a pronounced optical birefringence consistent with internal axial alignment of the polymer molecules. Polarization-resolved photoluminescence images and spectra were acquired following near-field optical addressing of single nanowires. This data revealed that nanowire luminescence was markedly anisotropic with a preferred axial polarization of wire emission.

Original languageEnglish
Pages (from-to)298-302
Number of pages5
JournalMaterials Science and Engineering B
Volume147
Issue number2-3
DOIs
Publication statusPublished - Feb 15 2008

Fingerprint

Texturing
wetting
Nanowires
Wetting
nanowires
templates
Polymers
polymers
Polarization
Molecules
Aluminum Oxide
Conjugated polymers
polarization
High resolution transmission electron microscopy
Birefringence
Optical microscopy
birefringence
Luminescence
molecules
near fields

Keywords

  • Birefringence
  • Conjugated polymers
  • Emission anisotropy
  • Nanowires
  • Polyfluorene

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Polyfluorene nanowires with pronounced axial texturing prepared by melt-assisted template wetting. / O'Carroll, Deirdre M; Irwin, Jennifer; Tanner, David A.; Redmond, Gareth.

In: Materials Science and Engineering B, Vol. 147, No. 2-3, 15.02.2008, p. 298-302.

Research output: Contribution to journalArticle

O'Carroll, Deirdre M ; Irwin, Jennifer ; Tanner, David A. ; Redmond, Gareth. / Polyfluorene nanowires with pronounced axial texturing prepared by melt-assisted template wetting. In: Materials Science and Engineering B. 2008 ; Vol. 147, No. 2-3. pp. 298-302.
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